US4489050A - Method of preparing a hydrogen-absorbing alloy - Google Patents
Method of preparing a hydrogen-absorbing alloy Download PDFInfo
- Publication number
- US4489050A US4489050A US06/495,915 US49591583A US4489050A US 4489050 A US4489050 A US 4489050A US 49591583 A US49591583 A US 49591583A US 4489050 A US4489050 A US 4489050A
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- United States
- Prior art keywords
- hydrogen
- alloy
- zirconium
- atomic percent
- zrmn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 31
- 239000000956 alloy Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 29
- 239000001257 hydrogen Substances 0.000 claims abstract description 29
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011572 manganese Substances 0.000 claims abstract description 11
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001068 laves phase Inorganic materials 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract 7
- 229910052748 manganese Inorganic materials 0.000 claims abstract 6
- 239000000203 mixture Substances 0.000 claims description 27
- 238000005266 casting Methods 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 229910001093 Zr alloy Inorganic materials 0.000 claims 2
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 229910008357 ZrMn2 Inorganic materials 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 3
- DSGIMNDXYTYOBX-UHFFFAOYSA-N manganese zirconium Chemical compound [Mn].[Zr] DSGIMNDXYTYOBX-UHFFFAOYSA-N 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- -1 ZrMn2 Chemical compound 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- MECMQNITHCOSAF-UHFFFAOYSA-N manganese titanium Chemical compound [Ti].[Mn] MECMQNITHCOSAF-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
- C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
- C01B3/0031—Intermetallic compounds; Metal alloys; Treatment thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S420/00—Alloys or metallic compositions
- Y10S420/90—Hydrogen storage
Definitions
- the invention relates to a method of preparing a zirconium-manganese alloy suitable for storing hydrogen.
- this object is accomplished by means of a method in which an alloy is prepared consisting of from 64 to 77 atomic percent manganese, with the remainder zirconium.
- the alloy is cast, after which the casting is heated in vacuum or in an inert atmosphere to an elevated temperature below its melting point until a homogeneous single C14 type of Laves phase has been obtained.
- the present invention is based on the discovery that in the zirconium-manganese alloy system, a uniform alloy phase of the type ZrMn 2 exists, which has a range of existence from 64 to 77 atomic percent Mn with the remainder being Zr, the crystal structure of which is of the hexagonal Laves phase C14 type.
- the a and the c parameters of the crystal lattice vary from 5.045 ⁇ to 4.980 ⁇ for a and from 8.282 ⁇ to 8.175 ⁇ for c.
- the relevant alloys share the property that no second phase precipitation occurs.
- Such second phases which may occur in comparable alloys, such as in titanium-manganese alloys may have a negative effect on the ability to store and to release hydrogen. It also means that the castings need not be quenched in order to maintain at room temperature the advantageous structure produced.
- Preferred heating temperatures are temperatures between 900° C. and 1150° C. After the casting has been subjected to the heat treatment, it is pulverized and exposed to a hydrogen atmosphere. The materials need not be subjected a special activation treatment.
- the zirconium-manganese alloys prepared according to the invention have plateau pressures lower than 10 atmospheres (10 6 Pa).
- the plateau pressure of a given alloy depends on the alloy composition. It has been found that at ambient temperature an alloy having the composition 64.3 atomic percent Mn with remainder Zr (ZrMn 1 .8) has a plateau pressure of 0.1 atmospheres (10 4 Pa), while more than 90% of all the stored hydrogen can be withdrawn from the material at this pressure.
- FIG. 1 is a graph showing the variations of the lattice parameters a and c versus the composition of the alloy ZrMn x ,
- FIG. 2 is a graph showing the dependence of the quantity of absorbed hydrogen in alloy compositions ZrMn x on the hydrogen pressure.
- the alloys have not been thermally treated as required by the invention,
- FIG. 3 is a graph showing the dependence of the quantity of hydrogen absorbed in alloys having the composition ZrMn x , which were prepared according to the invention, on the hydrogen pressure.
- Alloys were prepared having the compositions ZrMn 1 .6, ZrMn 1 .8, ZrMn 2 .4, ZrMn 3 .2, ZrMn 3 .6 and ZrMn 4 .4 by melting together elements having a purity of 99.9% and by heating these elements thereafter in a vacuum at 1050° C. for 3 days.
- the principal reflection lines of these compositions were indexed on the basis of the hexagonal Laves phase structure (C14 type).
- FIG. 1 shows the results of the X-ray analyses.
- a graduated scale in ⁇ is provided on the left-hand vertical axis for the a-axis, and a graduated scale in ⁇ is provided on the right-hand vertical axis for the c-axis.
- Curve a shows the variation of the a-axis, curve c of the c-axis.
- ZrMn 1 .8 to ZrMn 3 .4 the lattice constants change considerably. For compositions outside this range they remain constant. These compositions might therefore be considered as limit compositions for the uniform range of alloys having a C-14 structure. These compositions correspond to 64.3 atomic percent Mn with the remainder Zr, and 77.3 atomic percent Mn with the remainder Zr, respectively.
- the castings were pulverized without having been subjected to a thermal treatment, and were thereafter exposed to a 40 atmospheres (4.10 Pa) hydrogen atmosphere at a temperature of 50° C. Hydrogen was absorbed and desorbed again at a reduced pressure from the samples for a few cycles.
- FIG. 2 shows the results of these measurements.
- the hydrogen pressure is plotted in Pascal on the vertical axis, the number of absorbed gram atoms of hydrogen per gram-molecular weight of ZrMn x are plotted on the horizontal axis.
- alloys having the compositions ZrMn 1 .8, ZrMn 2 .4 and ZrMn 2 .8 were prepared according to the invention.
- the alloys were melted together from the elements having a purity of 99.9%.
- the castings were heated in a vacuum at 1050° C. for 3 days. Thereafter, after having been cooled to ambient temperature, the castings were pulverized and exposed to hydrogen at a pressure of 40 atmospheres at a temperature of 50° C. Hydrogen was absorbed and desorbed several times. Hereafter the isotherm of the hydrogen pressure versus the composition was measured at ambient temmperature.
- FIG. 3 shows the results of the above-described experiments. It can be seen that the hydrogen concentration in the alloys has become considerably less dependent upon the pressure in the plateau region of the curve. The double levels have disappeared.
- FIG. 3 shows that substantially the total quantity of hydrogen can be withdrawn from the alloy at the plateau pressure. This increases the suitability of the material for use as a hydrogen-absorbing material.
- the alloys which were prepared according to the invention can be used in hydrogen-storage arrangements.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
Abstract
Alloys consisting of from 64 to 77 atomic percent of manganese with the remainder zirconium are not suitable without further processing as a material for storing hydrogen at technically desired pressures. This property can be advantageously influenced by a heat treatment until a homogeneous C14 type of Laves phase has been obtained.
Description
This is a continuation of application Ser. No. 241,179, filed Mar. 6, 1981, now abandoned.
The invention relates to a method of preparing a zirconium-manganese alloy suitable for storing hydrogen.
An article entitled "Hydrogen Absorbtion and Desorption Properties of AB2 Laves-Phase Pseudobinary Compounds" by D. Shaltiel et al (Journal of the Less-Common Metals, volume 53 pages 117-131, 1977 discloses that a compound having the composition ZrMn2 is capable of absorbing hydrogen. At a hydrogen pressure of 8 atmospheres at room temperature, 1 molecule of ZrMn2 can absorb 3.6 atoms of hydrogen. However at 50° C. the hydrogen pressure of the compound ZrMn2 H3.6 was only 0.007 atmospheres. At 80° C. this pressure is as low as 0.03 atmospheres. According to British Patent Specification No. 1,508,764, the binary alloys of zirconium with manganese, such as ZrMn2, are not suitable for practical use for hydrogen storage as they have insufficient plateau pressures at suitable temperatures and pressures.
It is an object of the present invention to prepare alloys of the ZrMn2 type, which are suitable for hydrogen storage.
According to the invention this object is accomplished by means of a method in which an alloy is prepared consisting of from 64 to 77 atomic percent manganese, with the remainder zirconium. The alloy is cast, after which the casting is heated in vacuum or in an inert atmosphere to an elevated temperature below its melting point until a homogeneous single C14 type of Laves phase has been obtained.
The present invention is based on the discovery that in the zirconium-manganese alloy system, a uniform alloy phase of the type ZrMn2 exists, which has a range of existence from 64 to 77 atomic percent Mn with the remainder being Zr, the crystal structure of which is of the hexagonal Laves phase C14 type. The a and the c parameters of the crystal lattice vary from 5.045 Å to 4.980 Å for a and from 8.282 Å to 8.175 Å for c.
For the entire range of compositions the relevant alloys share the property that no second phase precipitation occurs. Such second phases which may occur in comparable alloys, such as in titanium-manganese alloys may have a negative effect on the ability to store and to release hydrogen. It also means that the castings need not be quenched in order to maintain at room temperature the advantageous structure produced.
Preferred heating temperatures are temperatures between 900° C. and 1150° C. After the casting has been subjected to the heat treatment, it is pulverized and exposed to a hydrogen atmosphere. The materials need not be subjected a special activation treatment.
At 20° C. the zirconium-manganese alloys prepared according to the invention have plateau pressures lower than 10 atmospheres (106 Pa). The plateau pressure of a given alloy depends on the alloy composition. It has been found that at ambient temperature an alloy having the composition 64.3 atomic percent Mn with remainder Zr (ZrMn1.8) has a plateau pressure of 0.1 atmospheres (104 Pa), while more than 90% of all the stored hydrogen can be withdrawn from the material at this pressure.
FIG. 1 is a graph showing the variations of the lattice parameters a and c versus the composition of the alloy ZrMnx,
FIG. 2 is a graph showing the dependence of the quantity of absorbed hydrogen in alloy compositions ZrMnx on the hydrogen pressure. The alloys have not been thermally treated as required by the invention,
FIG. 3 is a graph showing the dependence of the quantity of hydrogen absorbed in alloys having the composition ZrMnx, which were prepared according to the invention, on the hydrogen pressure.
Alloys were prepared having the compositions ZrMn1.6, ZrMn1.8, ZrMn2.4, ZrMn3.2, ZrMn3.6 and ZrMn4.4 by melting together elements having a purity of 99.9% and by heating these elements thereafter in a vacuum at 1050° C. for 3 days. By means of X-ray photographs, the principal reflection lines of these compositions were indexed on the basis of the hexagonal Laves phase structure (C14 type).
FIG. 1 shows the results of the X-ray analyses. A graduated scale in Å is provided on the left-hand vertical axis for the a-axis, and a graduated scale in Å is provided on the right-hand vertical axis for the c-axis. Curve a shows the variation of the a-axis, curve c of the c-axis. In the compositional range ZrMn1.8 to ZrMn3.4 the lattice constants change considerably. For compositions outside this range they remain constant. These compositions might therefore be considered as limit compositions for the uniform range of alloys having a C-14 structure. These compositions correspond to 64.3 atomic percent Mn with the remainder Zr, and 77.3 atomic percent Mn with the remainder Zr, respectively.
Castings having the compositions ZrMnx, x being 1.8, 2.0, 2.4, 2.8, 3.0, 3.2, were produced. The castings were pulverized without having been subjected to a thermal treatment, and were thereafter exposed to a 40 atmospheres (4.10 Pa) hydrogen atmosphere at a temperature of 50° C. Hydrogen was absorbed and desorbed again at a reduced pressure from the samples for a few cycles.
Thereafter the hydrogen-isotherm (hydrogen pressure versus composition) was measured at room temperature. FIG. 2 shows the results of these measurements. The hydrogen pressure is plotted in Pascal on the vertical axis, the number of absorbed gram atoms of hydrogen per gram-molecular weight of ZrMnx are plotted on the horizontal axis.
It appears from FIG. 2 that, without having been subjected to a thermal treatment, none of the tested compositions has a single, sharp plateau pressure. With different compositions different levels occur in the investigated pressure range. This is very pronounced for the composition ZrMn2.4. For this composition, a hydride having the composition ZrMn2.4 H is formed at approximately 0.25 atmospheres a hydride of the composition ZrMn2.4 H3 is formed at a pressure of approximately 2.5 atmospheres.
Thereafter, alloys having the compositions ZrMn1.8, ZrMn2.4 and ZrMn2.8 were prepared according to the invention.
The alloys were melted together from the elements having a purity of 99.9%. The castings were heated in a vacuum at 1050° C. for 3 days. Thereafter, after having been cooled to ambient temperature, the castings were pulverized and exposed to hydrogen at a pressure of 40 atmospheres at a temperature of 50° C. Hydrogen was absorbed and desorbed several times. Hereafter the isotherm of the hydrogen pressure versus the composition was measured at ambient temmperature.
FIG. 3 shows the results of the above-described experiments. It can be seen that the hydrogen concentration in the alloys has become considerably less dependent upon the pressure in the plateau region of the curve. The double levels have disappeared.
The measurements were repeated for a number of samples which were quenched after the thermal treatment; it appeared that no change in the hydrogen-absorbing capacity had occurred.
FIG. 3 shows that substantially the total quantity of hydrogen can be withdrawn from the alloy at the plateau pressure. This increases the suitability of the material for use as a hydrogen-absorbing material.
The alloys which were prepared according to the invention can be used in hydrogen-storage arrangements.
Claims (7)
1. A method of preparing an alloy of zirconium and manganese suitable for storing hydrogen, said method comprising the steps of:
preparing a mixture consisting essentially of 64 to 77 atomic percent manganese with the remainder being zirconium;
casting the mixture to produce a casting having a melting point; and
heating the casting in a vacuum or in an inert atmosphere at a temperature between 900° and 1150° C. and below the melting point until a homogeneous single C14-type of Laves phase has been obtained.
2. A method as claimed in claim 1, characterized in that the alloy consists essentially of 70.6 atomic percent manganese and 29.4 atomic percent zirconium.
3. A hydrogen-absorbing alloy prepared according to the method of claim 2.
4. A hydrogen-absorbing alloy prepared according to the method of claim 1.
5. A hydrogen-absorbing alloy prepared according to the method of claim 1.
6. A method of storing hydrogen comprising the steps of: providing an alloy of zirconium and manganese, and alloy consisting essentially of 64 to 77 atomic percent manganese with the remainder zirconium, said alloy having a homogeneous single C14-type of Laves phase, said alloy having a plateau pressure; and exposing the alloy to hydrogen to a pressure at or above the plateau pressure; characterized in that the alloy is prepared by the steps of: preparing a mixture consisting essentially of 64 to 77 atomic percent manganese with the remainder being zirconium; casting the mixture to produce a casting having a melting point; and heating the casting in a vacuum or in an inert atmosphere at a temperature between 900° and 1150° C. and below the melting point until a homogeneous single C14-type of Laves phase has been obtained.
7. A method as claimed in claim 6, characterized in that the alloy consists essentially of 70.6 atomic percent manganese and 29.4 atomic percent zirconium.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8001314A NL8001314A (en) | 1980-03-05 | 1980-03-05 | PROCESS FOR PREPARING A HYDROGEN ABSORBING ALLOY. |
| NL8001314 | 1980-03-05 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06241179 Continuation | 1981-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US4489050A true US4489050A (en) | 1984-12-18 |
Family
ID=19834931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/495,915 Expired - Lifetime US4489050A (en) | 1980-03-05 | 1983-05-20 | Method of preparing a hydrogen-absorbing alloy |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4489050A (en) |
| EP (1) | EP0035300B1 (en) |
| JP (1) | JPS56136964A (en) |
| DE (1) | DE3162725D1 (en) |
| NL (1) | NL8001314A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330709A (en) * | 1992-02-14 | 1994-07-19 | Korea Advanced Institute Of Science And Technology | Zirconium-based hydrogen storage materials useful as negative electrodes for rechargeable battery |
| US5441715A (en) * | 1991-03-26 | 1995-08-15 | Matsushita Electric Industrial Co., Ltd. | Method for the separation of hydrogen isotopes using a hydrogen absorbing alloy |
| US5460745A (en) * | 1994-02-07 | 1995-10-24 | The United States Of America As Represented By The United States Department Of Energy | Hydride compositions |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920010422B1 (en) * | 1987-05-15 | 1992-11-27 | 마쯔시다덴기산교 가부시기가이샤 | Hydrogen Absorption Storage Electrode and Manufacturing Method Thereof |
| CN102994833A (en) * | 2012-10-29 | 2013-03-27 | 海门市金易焊接材料有限公司 | Manganese metal block |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1508764A (en) * | 1976-02-20 | 1978-04-26 | Matsushita Electric Industrial Co Ltd | Alloy useful as hydrogen storage material |
| US4142300A (en) * | 1977-07-18 | 1979-03-06 | The United States Of America As Represented By The United States Department Of Energy | Lanthanum nickel aluminum alloy |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51132108A (en) * | 1975-05-13 | 1976-11-17 | Matsushita Electric Ind Co Ltd | Alloy for hydrogen storage |
| US4153484A (en) * | 1976-01-20 | 1979-05-08 | Matsushita Electric Industrial Co., Ltd. | Hydrogen storage material |
| JPS5288517A (en) * | 1976-01-20 | 1977-07-25 | Matsushita Electric Ind Co Ltd | Metallic material for storing hydrogen |
| JPS5288518A (en) * | 1976-01-20 | 1977-07-25 | Matsushita Electric Ind Co Ltd | Metallic material for storing hydrogen |
| JPS5340613A (en) * | 1976-09-27 | 1978-04-13 | Matsushita Electric Ind Co Ltd | Production of hydrogen storing aloy |
| US4163666A (en) * | 1978-01-31 | 1979-08-07 | Dan Davidov | Hydrogen charged alloys of Zr(A1-x Bx)2 and method of hydrogen storage |
-
1980
- 1980-03-05 NL NL8001314A patent/NL8001314A/en not_active Application Discontinuation
-
1981
- 1981-02-18 DE DE8181200188T patent/DE3162725D1/en not_active Expired
- 1981-02-18 EP EP81200188A patent/EP0035300B1/en not_active Expired
- 1981-03-02 JP JP2975881A patent/JPS56136964A/en active Granted
-
1983
- 1983-05-20 US US06/495,915 patent/US4489050A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1508764A (en) * | 1976-02-20 | 1978-04-26 | Matsushita Electric Industrial Co Ltd | Alloy useful as hydrogen storage material |
| US4142300A (en) * | 1977-07-18 | 1979-03-06 | The United States Of America As Represented By The United States Department Of Energy | Lanthanum nickel aluminum alloy |
Non-Patent Citations (11)
| Title |
|---|
| Intermetallic Compounds, edited by J. H. Westbrook, pp. 198 201, John Wiley & Sons, Inc. (1967). * |
| Intermetallic Compounds, edited by J. H. Westbrook, pp. 198-201, John Wiley & Sons, Inc. (1967). |
| Metals Reference Books, C. J. Smithells, p. 156. * |
| Panda, S. C., Bhan S., "Alloying Behavior of Zirconium With Other Transition Metals, Z Metallkde, 64(1973) H.11 pp. 793-799. |
| Panda, S. C., Bhan S., Alloying Behavior of Zirconium With Other Transition Metals, Z Metallkde, 64(1973) H.11 pp. 793 799. * |
| Pebler A. et al., "Equlibrium Studies on the Systems ZrCr-H2, ZrV2 H2, and ZrMo2 -H2 between 0° and 900° C. Trans AIME vol. 239, Oct. 1967, pp. 1593-1600. |
| Pebler A. et al., Equlibrium Studies on the Systems ZrCr H 2 , ZrV 2 H 2 , and ZrMo 2 H 2 between 0 and 900 C. Trans AIME vol. 239, Oct. 1967, pp. 1593 1600. * |
| Shattiel, D., Jacob, I., Davidov, D. "Hydrogen Absorption and Desorption Properties of AB2 Laves-Phase Pseudobinary Compounds" J. Less Comm Metals 53(1977) pp. 117-131. |
| Shattiel, D., Jacob, I., Davidov, D. Hydrogen Absorption and Desorption Properties of AB 2 Laves Phase Pseudobinary Compounds J. Less Comm Metals 53(1977) pp. 117 131. * |
| Van Mal, H. H., Buschow, K. H. J. Miedema, A. R., "Hydrogen Absorption in LaNi5 and Related Compounds: Experimental Observations and Their Explanation, J. Less Comm Metals 35(1974) pp. 65-76. |
| Van Mal, H. H., Buschow, K. H. J. Miedema, A. R., Hydrogen Absorption in LaNi 5 and Related Compounds: Experimental Observations and Their Explanation, J. Less Comm Metals 35(1974) pp. 65 76. * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5441715A (en) * | 1991-03-26 | 1995-08-15 | Matsushita Electric Industrial Co., Ltd. | Method for the separation of hydrogen isotopes using a hydrogen absorbing alloy |
| US5330709A (en) * | 1992-02-14 | 1994-07-19 | Korea Advanced Institute Of Science And Technology | Zirconium-based hydrogen storage materials useful as negative electrodes for rechargeable battery |
| US5460745A (en) * | 1994-02-07 | 1995-10-24 | The United States Of America As Represented By The United States Department Of Energy | Hydride compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56136964A (en) | 1981-10-26 |
| JPS6110033B2 (en) | 1986-03-27 |
| EP0035300A1 (en) | 1981-09-09 |
| NL8001314A (en) | 1981-10-01 |
| DE3162725D1 (en) | 1984-04-26 |
| EP0035300B1 (en) | 1984-03-21 |
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